Conduit-mold.



T. DE LA MARE.

CONDUIT MOLD- APPLICATION FILED MAY 1. 1914.

Patented June 29, 1915.

. J mm mm 7 4 4 j 4 4 Inventor Attorneys 4 Z3 j Z pipe lines,

THOMAS DE Ind. MARE,

or mm, man.

comma-stern.

T aIZ whom it may concern Be it known that l. Tnoiuas Dr. lo, Mann. a citizen of the United States. residing at Tooele, in the county of looele and State of "Utah, have invented a new and useful Conduit-Mold, of which the following is a specification.

The present invention appertains to an apparatus for molding conduits, culverts, and the like. and is particularly an improvement of the conduit mold disclosed in my co-pending application filed September 12. 1913, Serial No. 789.551;

The present invention contemplates the provision of a novel and improved apparatus for molding a continuous pipe or conduit within a trench, section by section, in an expeditious and facile manner.

Another object of the present invention is to provide a unique adjustable core for the mold.

A further object of the invention is to provide a novel adjustable cope or the mold.

It is also within the scope of the present invention to improve generally, an apparatus of the present character, whereby the utility of the structure will be enhanced.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter escribed and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

The invention has been illustrated in its preferred embodiment in the accompanying drawings, wherein- Figure 1 is a longitudinal section of the apparatus, as in use. Fig. 2 is across section thereof, taken on the line 2-2 of Fig. 1. Fig. 3 is a fragmental plan view of the forward end portion of the cope, the corresponding handle being broken away. Fig. 4 is a front view ofthe end flanges oi the cope. Fig. 5 is an enlarged vertical section taken through one end of the core,illustrating the head plate attached to the end of the core for molding the head or end of the conduit. Fig. 6 is a sectional view taken on the line 6-45 of Fig. 5. Fig. 7 is a sectional view on a reduced scale, illustrailing an auxiliary or supplemental core Specification oi Letters Eatent.

. tions 11 and 12 being pivoted ilatented June 29, 1 .915.

aerial E0. 335,734. for forming a flared or tapered end section ofthe conduit.

in carrying out the present invention.

there is provided a core 1, and a cope 2.

which are adapted to coilperate in a pcculiar manner to provide the mold.

The core 1 comprises side plates or members 3, which are provided with lower inclined flanges i, and upper inclined flanges 5. The lower or bottom flanges 4: are preferably declined. so as to converge downwardly, while the upper or top flanges 53 are preferably curved. A transversely curved top or crest plate.6 is adapted to rest upon or overlap the inner or free edge portions of the flanges 5, while a bottom plate 7 is adapted to fit below the inner or free edge portions of the lower flanges the bottom plate 7 having its side portions inclined, similar to the inclination oi the flanges 4.

The side plates 3 and their flanges, in connection with the top and bottom plates 6 and 7, respectively, form the shell of the core, which as illustrated, is relatively wide, and of relatively small heighhto form a conduit of similar outline. The bottom of the core shell is ii-shaped, while the top is arched or converted transversely.

Within the core shell, is arranged a mechanism for expanding and contracting the said shell, and for adjusting the same to vary the width and height of the shell, and to this end, hub members 8 are disposed within the end portions of the core shell and each have pivoted thereto two opposite relatively long sic e links 9 and upper relatively short and lower links 10, the outer ends of the links 9 being pivoted to the side plates 3. Each of the side links 9 comprises an outer tubular section 11, and an inner section 12 telescoped or fitting slidably within the section 11, the remote ends of the secto the corre sponding side. lates and to the hub 8, respectively. A olt or other securing mem ber 13 is assed through suitable apertures rovided in the sections 11 and 1'2 of each link 9, the sections 12 of the links 9 having longitudinal series of apertures for the engagement of the bolts 18 which enable the links't) to be expanded or contracted. Each of the upper and lower links 10 is similarly the sections 14 and 15 being adjustably connected by means of a bolt or other securing member 16.

The outer ends of the outer sections 15 of the links 10, are provided with lateral longitudinally elongated loops or guides 18.

secured to the inner or free edge portions of the flanges 4 and 5, and having the arms or branches of the T-heads engaged thcrethrough for sliding movement laterally and longitudinally therein. The guides 18 thus enable the T-heads to move longitudinally of the core shell, to a limited extent, the links 10 also being permitted to swing suliiciently for the purposes, when the hubs 8 are moved longitudinally, and whereby the links 9 and 10 will serve as toggle links to expand and contract the core shell.

As will appear eing terminally from the drawing, the side links 9 are relatively lon while the upper and lower links 10 are re atively short, due to the variation in the width and height of the core shell.

- he inner pivoted ends of the links 9 and 0 are provided with inwardly projecting angular extensions or lugs 19 forming stops arranged to contact with the hubs 8, when the hubs are separated so as to links 9 and p ane, loc center, as will be ob In order to actuate the toggle links at the opposite ends of the core shell, a longitudinal actuating rod 20 is disposed axially hin the core shell, and has its end poror screw 20.

A detachable form 22 is mounted upon the top plate 6 of the core shell, intermediate its en for the purpose which Will hereinafter appear.

Bolts 23 are secured to the bottom of the top plate 6 adjacent the ends thereof, and project beyond the ends he said top plate or t es, for the passage of one or the other of t e bolts 23, in order that a nut 23 threaded upon the said bolt 23 may clamp the head or end plate 24 against the end of the core shell, for the purpose as will hereinafter more fully appear.

Coming to the cope construction, the same 1d, and spaced apart longitudinally, the remote edges of the sections 26 having depending flanges 27 forming the sides of the cope. The cope is arched transversely similar to the arching of the top of the core, the cope being of slightly greater proportions than the top of the core, as will be evident. he cope sections 26 have an opening 28 therebetween, the opening 28 being elongated longitudinally, and terminating short of the ends clined flanges or lips 29 along the side edges of t e openih 28, to serve as conveniently lling the cope with concrete, as will hereinafter more fully appear.

he end portions of the cope sections 26 are adjustably connected, by means of yoke plates 30 resting or'overlapping the end portions of the sections 26 an having transversely elongated slots 31 adjacent their side edges, and through which bolts or other clamping members 31 are engaged, so as' to engage the cope sections 26. The yoke plates 0 are convexed transversely, similar to the cope sections26, whereby the cope sections 26 may be adjusted transversely to and from each other, by loosening the bolts or other clampingmembers 31 The yoke plates 20 extend to the ends of the opening 28, or the ends of the hopper flanges 29, and are also flush with the ends of the sections 26.

Extensible yoke-shaped handles 32 are provided for the end portions of the cope, each handle 32 comprisin a section 33 tele scoped or slidably receive ably connected securing member 35, similar to the links 9 and 10 above described. The remote ends 36 of the sections 33 and 34 of each handle 32 are bent angularl and secured to the cope sections 26 adjacent the ends of the hopper flanges 29, the inner corners of the yoke plates 30 being cut away, as at 37, to accommodate the ends 36 of the handles. The handles 32 enable the cope to be readily extensible and con- At the1r forward ends,

stationary or rigid inturned flanges 38, which conform in shape to the shape of thecope sections 26 and their side flanges 27, .the outer or upper edges of the flanges 38 having angular ears 39 overlapping and riveted or otherwise secured upon the cope sections 26. Therigid flanges 38 carrv adjustable flanges or form plates 40, which have their inner ends overlapped, and which are of a shape conforming to a hopper for the sections 33 and 34: being adjustis tapered or preferably provided with upturned largest end,

messes the inner or lower edges of the flanges 40 being: cut to conform to the end portion of the core. Each oi the flanges 20 is provided withthe horizontal slots e1 through which bolts or other clamping members 4:2 are passed so as to engage the flanges 38, the bolts 42, when loosened, enabling the tlang'es 'l0 to be adjusted transversely relatively to the cope sections 26.

in Fig. 7, there has been delineated, an auxiliary or supplemental core i3, which flared, in order to form a flared end for the conduit, when desired. This supplemental core 43 has a bolt 23 secured within its top and at its outer or for the engagement of the head the flanges 38,

or end phase. The supplemental core 4 is preferably expansible and contractible, in order that its dimensions, such as its Width and height, may be adiusted accordin o: to the adjustment of the core 1.

its will, be obvious from the foregoing, taken in connection with the drawings, the body portions of the core and cope may be constructed of sheet metal. as well as other appropriate parts, such as the flanges 38,

andeO. and the head or endplate '24. The several parts oi. the structure may be readily assembled, and may be constructed of various sizes, according to the nature of work to be done.

ln constructing .a conduit or culvert with the present apparatus. a suitable trench or ditch M is dug in the soil, and the bottom 45 of the conduit is properly formed therein, the side portions of the bottom being preferably svnclinal. Thus. the bottomlfi of the conduit or culvert is formed in any suitable manner within the bottom of the trench 44. th bottom may be constructcd of any suitable thickness and is tions 4 After the bottom duit has been molded and formed, and has set 'sufiiciently. the upper portion of the conduit is completed, section by section, as will presently appear. The core 1, when expanded. is placed upon the bottom of the conduit section underconstruction. and has its rear end engaged or fitted Within the end of the previously completed conduit section 46, as seen in ig. '1. The core 1 may be readily expanded by rotating the shaft '20 properly, so as to move the hubs 8 outwardly, or away from each other. to thrust the toggle links 9 and 10 outwardly, as will'be obvious. The cope 2 is then placed over the core 1. the rear end of the cope being seated upon the end of the previously completed conduit section l6, and the forward end flange 40 40 oi the cope is seated upon the forward end of the core 1, which will support the cope in place, and in a spaced relation relativeto the top of the core i. it is to be understood, of course,

3', order to properly pack l.esired, and maybe constructed s1dcpor-- d5 of the conthat the core and cope have been properly adjusted, according to the size of the con duit to be molded or formed, in order that the core and cope will coiiperate properly fbr the purposes. ow, after the core an cope have been placed as above indicated. the concrete or other plastic material is poured into the cope through the longitudinal opening 98 in the crest ot the cope, this being facilitated by means of the hopper flanges 29, and the concrete in i the space between the core and cope. wi complete the upper portion of the conduit section l? succeeding or following the conduit section all). The concrete may be tamped readily, through the opening '28, in the concrete. After; the upper half of the new conduit section 47 has been completedv and set. the cop'e may be lifted or removed therefrom, and the core 1 may be contracted, for properly rotating the shaft 20 so as to move the hubs 8 inwardly or toward each other. to pull the togglelinks 9 and 10 toward the center of the core, 'to thereby contract the core so shell. When the core has been'contracted, the same may be readily slipped out of the conduit section d7, and placed in advance of the conduit. section A7, to constructthe succeeding or following: conduit section, in the manner above described, I i 1 It will thus be obvious. that by-continuinl the operation above describednthetonduit or culvert ma be conveniently and rapidly'lormed, step by step. or section b 100 section, thesuccessive conduit sections havinn their ends bonded together, so as to provide a practically continuous conduit or culvert. The" conduit. or culvert may be extended to any suitable length or distance in various sizes or proportions, by properly adjusting the core and cope.

To adjust the width of the core'l, the side links 9 are either extended or contracted, which ever is desired, sons to cause the side plates 3 to be moved from or toward each other, to increase or decrease the width of the core. T o'increase or decrease the height of the core, the upper and lower links 10 11: are either extended or contracted,"to flex the said lower flanges 4 and 5 either away from or toward each other, it being note d that the T-heads 17 of the links 10 are slidaloly engaged to the flanges 4 and 5 by means of the loops or guides side plates 3 of the core, to vary the thickness of the side Walls to theconduit sections.

he end flanges of the cope being overlapped, may be adjusted transversely with tie cope sections 26, without opening up the flange 404-0,the function of the said flange eing to hold the concrete between the core and cope, by closing up the end of the space therebetueen, as seen in Fig. 1. The flange -l0-40 thus has the double function of sup porting the foru-ard or free end of the cope from the forward end of the core, and of closing the forward end of the space between the core and cope to confine the concrete t erein.

In forming the end culvert, with a head or end plate 24 may be attached to the proper end of the core 1, by engaging the plate 24 over the corresponding bolt 23, and securing the plate 24 in place by means of a nutor other securing element 23 engaged over the bolt 23. The head or coping 8, as seen in Fig. 5, may thus be conveniently folded against the head of the conduit or 4 may then ploying the core in connection with the successive conduit sections as above discussed.

Vhen it is desired to provide the end or ends of the conduit with flared or tapered mouths, the supplemental core 43 illustrated in Fig. 7 is employed. The supplemental core 43, after being properly adjusted, has its inner or smallest end slipped over the end of the core 1, and the head or end plate 2% is then applied to the largest or other end of the supplemental core 4-3, by securing the plate 24 to the bolt 23, which will enable the concrete to be molded over the supplemental core 43 and against the head plate 4 to provide the flared or taperedmouth and the head or coping at the end of the conduit.

The particular and peculiar shape of the conduit or culvert is of advantage, inasmuch as the conduit requires only a shallow coping, the head or tl arched top of the duit or culvert is of advantage,-inasmuch as a flowing through the the central or bottom, so as keep the sediment in motion or suspension.

duit or culvert may be provided, at the points desired, with a man- 10 e or opening 49, as seen in Fig. l, by attaching the form 22 to the top'plate 6 of being vall to aving thus described the invention, What is claimed is:

In a molding apparatus, a transversely h d cope comprising a pair of side sec- 7 means for adjustably ping the yoke plates and sections together, there being a filling opening between the said sections and yoke plates.

a transversely arched cope comprising a pair of side'secadjacent ends overlapped. I

In testimony that I claim the foregoing as my own, I have hereto ailixed my signature in the presence of two witnesses.

THOMAS DE LA MARE. Witnesses:

W. R. GILLEsPIn, EPH PICKET'I'.

dug, thelconduit being readily 

